2008 BMW 550I tire pressure reset

Technology for comfort, convenience and safety
96 5.Change to upper field if necessary. Turn the
controller until "FTM" is selected and press
the controller.
6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.
8.Select "Yes" and press the controller.
9.Start to drive.
"resetting FTM …" is displayed.
The initialization finishes during driving.
Indication of a flat tire
The warning lamp lights up red. A mes-
sage appears on the Control Display.
In addition, an acoustic signal sounds.
There is a flat tire or extensive inflation pressure
loss.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2.Identify damaged tire.
If identification is not possible, con-
tact a BMW center.<
3.Replace the damaged wheel, refer to
Changing wheels on page242.
Run-flat tires*
1.Cautiously reduce speed to below 50 mph/
80 km/h. Avoid severe braking and steering
maneuvers and do not exceed a speed of
50 mph/80 km/h.
If the vehicle is not equipped with run-
flat tires, refer to page227, do not
continue driving. Continuing to drive with a
flat tire could cause severe accidents.<
2.At the next opportunity, check the air pres-
sure in all four tires.
If the tire inflation pressure in all four
tires is correct, the Flat Tire Monitor
may not have been initialized. The system
must then be initialized.<
3.In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guide values:
>With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
>With a medium load:
2 persons, cargo bay full, or
4 persons without luggage:
approx. 94 miles/150 km
>With a full load:
4 or more persons, cargo bay full:
approx. 30 miles/50 km
Drive cautiously and do not exceed
50 mph/80 km/h or else you run the risk of
causing an accident. In the event of pressure
loss, vehicle handling changes. This includes
reduced tracking stability in braking, extended
braking distance and altered natural steering
characteristics.
If unusual vibrations or loud noises occur while
the vehicle is being driven, this can indicate final
failure of the damaged tire. Reduce speed and
stop at a suitable location as soon as possible,
otherwise pieces of the tire could become
detached and cause an accident. Do not con-
tinue driving, but instead contact your BMW
center.<

Controls
97Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
TPM Tire Pressure Monitor*
The concept
TPM checks the tire inflation pressure in the
four mounted tires. The system reports when
the tire inflation pressure has dropped consid-
erably in one or several tires.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be reset at the correct tire
inflation pressure.
Always use wheels with TPM electronics, oth-
erwise fault-free operation of the system is not
ensured.
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change.<
System limits
TPM cannot announce sudden serious tire
damage caused by external influences.
The system does not function properly if it has
not been reset, e.g. a flat tire is reported despite
correct tire inflation pressures.
The system is inactive and cannot display a flat
tire if a wheel has been mounted without TPM
electronics, e.g. a compact wheel, or if TPM is
temporarily interfered with by other systems or
devices which use the same radio frequency.
Status display on Control Display
The tire and system status is indicated by the
color of the tires.
TPM takes the fact that the tire pressure
changes during driving into account. A correc-
tion is only required if requested by TPM with
the color.
Green
The tire pressure matches the learned set state.
"TPM active" is displayed on the Control Dis-
play.
One wheel is yellow
Flat tire or a major drop in inflation pressure in
the indicated tire. A message appears on the
Control Display.
All wheels are yellow
Flat tire or a major drop in inflation pressure in
several tires. A message appears on the Control
Display.
Gray
The system cannot detect a flat tire.
Reasons for this can be:
>TPM is being reset
>Temporary interference due to systems or
devices which use the same radio fre-
quency
>Malfunction
Resetting system
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change.<
Resetting finishes during driving, which can be
interrupted at any time. When driving resumes,
resetting is continued automatically. Do not
reset the system when driving with a compact
wheel
*.
iDrive, for operating principle refer to page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Change to upper field if necessary. Turn the
controller until "TPM" is selected and press
the controller.

Technology for comfort, convenience and safety
98 6.Start the engine, but do not start driving.
7.Select "Reset" and press the controller.
8.Select "Yes" and press the controller.
9.Start to drive.
The tires are shown in gray and "Resetting
TPM..." is displayed.
After a few minutes of driving, the set tire infla-
tion pressures in the tires are applied as the set
values to be monitored. Resetting finishes dur-
ing driving. The tires are shown in green on the
Control Display.
If a flat tire is detected during resetting
and applying the tire inflation pressures,
all tires are shown in yellow on the Control Dis-
play. The message "Tire low!" is displayed.<
Message with low tire inflation
pressure
The warning lamp lights up yellow. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation
pressure loss.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.2.Check whether your vehicle is equipped
with standard tires or run-flat tires.
You will recognize run-flat tires by a
circular symbol containing the letters
RSC on the side of the tire, refer to
page227.<
Standard tires
1.If all four wheels are shown in yellow, iden-
tify the damaged tire on the vehicle.
2.Replace the damaged wheel or wheels,
refer to Changing wheels on page242.
In contrast to a compact wheel, a spare wheel is
equipped with the necessary TPM electronics
and also monitored after mounting and after
resetting the system.
Have the tire replaced by a BMW center or a
workshop informed on handling TPM which
works according to BMW repair procedures
with correspondingly trained personnel.
Run-flat tires*
1.Cautiously reduce speed to below 50 mph/
80 km/h. Avoid severe braking and steering
maneuvers and do not exceed a speed of
50 mph/80 km/h.
If the vehicle is not equipped with run-
flat tires, refer to page227, do not
continue driving. Continuing to drive with a
flat tire could cause severe accidents.<
2.In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guide values:
>With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
>With a medium load:
2 persons, cargo bay full, or
4 persons without luggage:
approx. 95 miles/150 km
>With a full load:
4 or more persons, cargo bay full:
approx. 30 miles/50 km

Wheels and tires
220
Wheels and tires
Tire inflation pressure
Information for your safety
The condition of the tires and the maintenance
of the specified tire pressure are crucial not only
to the tire's service life, but also to driving com-
fort and most importantly, driving safety.
Checking pressure
Only check tire inflation pressure when the tires
are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle has
been parked for at least 2 hours. When tires are
warm, the tire inflation pressure increases.
Check the tire inflation pressure regularly
and correct it as needed, even on the
compact tire
*: at least twice a month and before
starting long trips. Otherwise driving instability
or tire damage, and therefore accidents, can
result from incorrect tire inflation pressures.
Do not drive with depressurized, i.e. flat tires,
except run-flat tires. A flat tire will seriously
impair your vehicle's handling and braking
response. Attempts to drive on a flat tire can
lead to a loss of control over the vehicle.<
After correcting the tire inflation pressure,
reinitialize the Flat Tire Monitor, refer to
page95, or reset the Tire Pressure Monitor,
refer to page97.<
Pressure specifications
The tables below provide all the correct inflation
pressures for the specified tire sizes at ambient
temperature.
The inflation pressures apply to the tire
sizes and tire brands respectively
approved and recommended by BMW; a list of
these is available from your BMW center. tion pressure for your tires, observe the follow-
ing:
>Tire sizes of your vehicle
>Load conditions
>Maximum allowable driving speed
Tire inflation pressures for speeds
up to 100 mph/160 km/h
For normal driving up to 100 mph/160 km/h,
adjust pressures to the respective tire inflation
pressures listed on the following pages in the
column Traveling speeds up to max. 100 mph/
160 km/h to achieve optimum driving comfort.
These pressure specifications can be found on
the door post when you open the driver's door.
The permissible top speed for these tire
inflation pressures is 100 mph/160 km/h.
Do not exceed this speed, otherwise tire dam-
age and accidents may result.<
Tire inflation pressures for speeds
above 100 mph/160 km/h
In order to drive at maximum speeds in
excess of 100 mph/160 km/h, please
observe, and, if necessary, adjust tire pressures
for speeds exceeding 100 mph/160 km/h from
the relevant table on the following pages.
Otherwise tire damage and accidents could
occur.<
Observe all national and local maximum speed
limits, otherwise violations of the law could
occur.

Mobility
245Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Protect valve stems with valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Initialize the Flat Tire Monitor, refer to
page95, or reset the Tire Pressure Monitor,
refer to page97.
5.Replace the damaged tire as soon as possi-
ble and have the new wheel/tire balanced.
Driving with compact wheel
Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
The driving characteristics change, for example
reduced track stability on braking, extended
braking distance, and altered self-steering
characteristics in the limit range. In conjunction
with winter tires, these characteristics are more
pronounced.
Only one compact wheel may be
mounted. Restore the wheels and tires to
their original size as quickly as possible. Failure
to do so is a safety risk.<
Vehicle battery
Battery care
The battery is 100 % maintenance-free, i.e., the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW center will be glad to advise in
all matters concerning the battery.
Charging battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine switched off. Connections, refer to
Jump starting on page248.
Disposal
Have old batteries disposed of by your
BMW center or hand them in to a recy-
cling center. Maintain the battery in an upright
position for transport and storage. Always
restrain the battery to prevent it from tipping
over during transport.<
Power failure
After a temporary power supply interruption,
some settings are lost. Take the following
steps:
>Seat, mirror and steering wheel memory
Store the positions again, refer to page48.
>Time and date
Reset, refer to text starting on page86.
>Radio
Store stations again, refer to page174.
>Navigation system
Wait until the system starts, refer to
page142.
Fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a sub-
stitute of another color or amperage rating, as
this could lead to a circuit overload, ultimately
resulting in a fire in the vehicle.<
Sedan
Spare fuses, plastic tweezers and fuse alloca-
tion diagram are located in the compartment for
the onboard tool kit, refer to page237.
Sports Wagon
Spare fuses and a pair of plastic tweezers are
contained in the onboard tool kit, refer to
page237. A fuse allocation diagram is located
in the cargo bay behind the right-hand side
panel.

Everything from A to Z
276
P
Panic mode31
Panorama glass sunroof43
– moving manually44
Park Distance Control PDC90
"Parked car operation"119
"Parked car ventilation"119
Parked car ventilation118
– activating activation
time119
– LED114
– preselecting activation
times119
– switching on and off
directly119
Parking, vehicle62
Parking aid, refer to PDC Park
Distance Control90
Parking assistant, refer to
PDC Park Distance
Control90
Parking brake, refer to
Handbrake63
Parking lamps108
– replacing bulbs239
Partition net, Sports
Wagon129
Parts and accessories6
Passenger-side exterior
mirror, tilting down53
"Pathway lighting"109
Pathway lighting109
"PDC"91
"PDC display on"91
PDC Park Distance Control90
Personal Profile29
"Perspective"158
"Phone"196,198,201
Phone book200
– changing entry202
– creating and editing voice
phone book206
– deleting all entries203
– deleting entry203
– dialing phone number202Phone numbers
– deleting from phone
book203
– dialing201
– most recent numbers203
– selecting in phone book203
– Top 8203
Pinch protection system
– glass sunroof, electric42
– panorama glass sunroof43
– power windows41
Plasters, refer to First-aid
kit248
"Play" on the radio180
Plug-in unit for remote
control, refer to Ignition
lock61
Pollen, refer to Microfilter/
activated charcoal filter118
Position
– refer to Displaying current
position163
– refer to Storing current
position152
Power failure245
Power windows, refer to
Windows40
Preselecting activation times
of the parked car
ventilation119
"Presets" on the
radio172,180
Pressure, tires220
Pressure monitoring of tires,
refer to TPM Tire Pressure
Monitor97
"Profile"215
Programmable buttons on
steering wheel54
Programmable memory
buttons21
Protective function, refer to
Pinch protection system
– glass sunroof, electric42
– panorama glass sunroof43
– windows41
R
Radio
– autostore174
– controls168
– High Definition Radio176
– sampling stations173
– satellite radio179
– selecting frequency
manually173
– selecting
waveband168,172
– station search173
– station selection172
– station with the best
reception174
– storing stations174
– switching on/off168
– tone control169
– volume169
– Weather Band, refer to
Weather news flashes176
Radio key, refer to Keys/
remote control28
Radio readiness61
– switched off62
– switched on61
– with comfort access39
Radio stations, storing174
Rain sensor68
"Random", random play
sequence185
"Random all" in audio
mode186
"Random directory" in audio
mode186
"RDS"175
Reading lamps113
Rear armrest, refer to Center
armrest, rear127
Rear lamps, refer to Tail
lamps240
– replacing bulbs240
Rear seats
– adjusting head restraints50
– folding over backrest127
– heating52
– removing head restraints50

Reference 281
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Tilting down passenger-side
exterior mirror53
"Time"87
"Time format"87
Timer, refer to Preselecting
activation times119
"Timer 1" for parked-car
ventilation119
"Timer 2" for parked-car
ventilation119
Tire inflation pressures220
Tire pressure loss96,97
Tire Pressure Monitor
TPM97
Tire Quality Grading226
Tire replacement, new wheels
and tires227
Tires
– age226
– air loss96,98
– breaking-in134
– changing227
– condition227
– damage227
– flat tire, refer to Changing
wheels242
– inflation pressure220
– new wheels and tires227
– pressure monitoring, refer to
Flat Tire Monitor95
– pressure monitoring, refer to
TPM Tire Pressure
Monitor97
– replacing242
– retreaded tires228
– run-flat tires227
– size225
– tread227
– wear indicators227
– wheel/tire combination227
– winter tires228
Tire trouble
– changing wheels242
– compact wheel244
TMC station, refer to Traffic
information160"Tone"169
Tone dialing method204
Tone in audio mode
– adjusting169
– middle setting171
Tone on locking/unlocking31
Tools, refer to Onboard
toolkit237
"Top 8" for mobile phone202
Torque
– lug bolts, refer to After
mounting
244
– refer to Engine data254
Touch tone dialing, refer to
Tone dialing method204
Tow bar250
Tow fitting249
Towing249
– methods250
– tow fittings249
– with automatic and sport
automatic transmission250
– with manual
transmission250
"Town / City" for destination
entry145
Tow rope251
Tow-starting249
"TPM"97
TPM Tire Pressure
Monitor97
– resetting system97
– system limits97
– warning lamp98
Tracks
– random sequence185
– sampling on CD184
– selecting with CD183
Track width, refer to
Dimensions255
Traction-assist feature, refer
to DSC Dynamic Stability
Control92
Traction control, refer to DSC
Dynamic Stability
Control92Traffic information for
navigation160
– depiction in route map162
– displaying161
– during destination
guidance163
– symbols162
"Traffic Info settings"161
Traffic jam
– displaying traffic
information160
– refer to Bypassing route
sections160
Transmission
– automatic transmission with
Steptronic63
– manually unlocking and
locking transmission lock65
– manual transmission63
– sport automatic
transmission66
– starting assistant94
– towing250
Transporting children
safely56
Transport securing device,
refer to Securing cargo138
Tread depth, refer to Minimum
tire tread
227
Treble, refer to Tone
control169
"Treble", tone control170
"Trip computer"81
Trip computer80
Trip-distance counter
– refer to Trip computer80
– refer to Trip meter78
"Triple turn signal"67
Trip meter78
– also refer to Trip
computer80
Trunk, refer to Cargo bay
Trunk lid, refer to Tailgate35
Turning circle, refer to
Dimensions255